Honda-SOHC

SOHC.co.uk Forums => CB500/550 => Topic started by: DomP on August 19, 2023, 12:06:15 PM

Title: 550f 069a needle position
Post by: DomP on August 19, 2023, 12:06:15 PM
As much as I've searched I can't find an answer to which slot the needle clip should be in as stock, they are currently at no2 from top.
Title: Re: 550f 069a needle position
Post by: deltarider on August 19, 2023, 12:10:50 PM
That's correct.
Title: Re: 550f 069a needle position
Post by: DomP on August 19, 2023, 12:12:23 PM
Quote from: deltarider on August 19, 2023, 12:10:50 PM
That's correct.

Perfect!  Let rebuilding commence
Title: Re: 550f 069a needle position
Post by: McCabe-Thiele (Ted) on August 19, 2023, 12:39:40 PM
How many slots are there, iirc it's usually the middle position.
Title: Re: 550f 069a needle position
Post by: deltarider on August 19, 2023, 03:22:24 PM
All Honda documents I have seen, agree on the 2nd from top for the CB550F.
Title: Re: 550f 069a needle position
Post by: McCabe-Thiele (Ted) on August 19, 2023, 04:57:00 PM
Quote from: deltarider on August 19, 2023, 03:22:24 PM
All Honda documents I have seen, agree on the 2nd from top for the CB550F.

So how many clip positions are there on your CB550 is it only four or are there five like on my 400 & presumably on my 500?

You have stated there are five on the CB500 like mine is the 550 different?

http://forums.sohc4.net/index.php?topic=109137.0
Title: Re: 550f 069a needle position
Post by: deltarider on August 19, 2023, 07:25:28 PM
Mine is a CB500 so five. Have a look at my overview for the rest.
Title: Re: 550f 069a needle position
Post by: DomP on August 19, 2023, 07:35:21 PM
Five slots on the needle of 069a carbs
Title: Re: 550f 069a needle position
Post by: deltarider on August 19, 2023, 07:50:58 PM
Both the 272304 (K models) as the 273004 needle (F models) are supposed to have 5 slots.
Title: Re: 550f 069a needle position
Post by: DomP on August 20, 2023, 08:39:30 PM
Not sure how much this clarifieus but on my cb550f all needles were set to 2nd slot and didn't appear to have ever been tempered with.
Title: Re: 550f 069a needle position
Post by: deltarider on August 21, 2023, 08:46:08 AM
Quote from: DomP on August 20, 2023, 08:39:30 PM
Not sure how much this clarifieus but on my cb550f all needles were set to 2nd slot and didn't appear to have ever been tempered with.
Back then, nobody did, nor would they 'adjust' the floattangs.
Title: Re: 550f 069a needle position
Post by: Oddjob on August 21, 2023, 05:16:46 PM
You clearly never went racing DR, to get maximum performance you were altering the needles, jets etc for almost every meeting due to track requirements.